华电技术 ›› 2020, Vol. 42 ›› Issue (12): 94-100.

• 技术交流 • 上一篇    

600MW超临界机组深度调峰安全可靠运行解析

  

  1. 1.华电电力科学研究院有限公司,杭州 310030; 2.华能新华发电有限责任公司,黑龙江 大庆163000
  • 出版日期:2020-12-25 发布日期:2021-01-04

Analysis on safety and reliability of 600 MW supercritical units' deep peak regulation

  1. 1.China Huadian Electric Research Institute Company Limited,Hangzhou 310030,China;2.Huaneng Xinhua Power Generation Company Limited,Daqing 163000,China
  • Online:2020-12-25 Published:2021-01-04

摘要: 为加快非化石能源发展,推进能源生产和消费革命,深度调峰成为燃煤机组响应国家推进能源生产和消费革命的主要手段。通过2台600 MW超临界机组深度调峰的应用,总结深度调峰的难点,并针对机组烟风系统、制粉系统、给水系统、轴封及氢冷器和定冷水系统、循环水和凝结水系统、大/小机本体部分等专业系统予以分述。分析了深度调峰各系统的调整方式及注意事项。依据调整试运行经验,给出汽机侧和锅炉侧的调整注意事项,为同类型燃煤机组深度调峰提供借鉴。

关键词: 超临界机组, 深度调峰, 汽机, 锅炉, 灵活性改造, 循环水泵

Abstract: In order to expedite the development of non-fossil resources and promote the reform of energy production and consumption,deep peak regulation has become the main incentive measure for coal-fired units.Analyzing the application of deep peak regulation in two 600 MW supercritical units,the difficulties in deep peak regulation were summarized,and specialized subsystems including flue gas and air system,pulverizing system,water supply system,shaft seal and hydrogen cooler,stator cooling water system,circulating water and condensate system,bodies of large/small turbines were subscribed.The adjustment modes and points for attention of each subsystem during the deep peak regulation were analyzed.According to the experience in adjustment and trial operation,key points on steam turbine side and boiler side were given,which could be used as a reference for deep peak regulation of the same-type coal-fired units.

Key words: supercritical unit, operation, deep peak regulation, steam turbine, boiler, flexibility transformation, circulation water pump